Apparatus foe ventilatim sewers and drains



T. ROWAN.

(No Model.)

APPARATUS FOR VBNTILATING SEWERS AND DRAINS. I

No. 284,761. Patented Sept. 11, 1883.

N. PETzns. PholaLilMgr-lphen Washinginn. DJ;

' NI'ED STATES PATENT OFFICE.

THOMAS ROI/VAN, OF LONDON, ENGLAND.

' SPECIFICATION forming part of Letters Patent No 284,761, datedseptember 11, 1883.

Application filed November 3, 1882. (No model.) Patented in England December 17, 1880, No. 5,303.

'of which the following is a specification.

This invention relates to an improved apparatus for ventilating sewers and drains and for treating the gases therefrom, the object of the invention being to provide means for causing the sewer-gases to be drawn or forced through a suitable purifying medium before being discharged into theopen air.

In carrying out my improvements I provide a receiver of suitable size and material. This receiver is provided with a perforated false bottom, and may or may not have a removable perforated tray or shelf near its upper end. The top of the receiver is provided with suitable charging-openings, for the purpose hereinafter described. From the top of the receiver passes a shaft havinga suitable cap or cowl at the top, or provided with other means for producing an induced current. On the hereinbefore-described perforated false bottom is placed a quantity of suitable porous materialsuch as cokew hich is saturated with carbolic acid or other suitable antiseptic or disinfecting material, which may be supplied through the hereinbeforedescribed charging-holes. From the receiver, between the false and true bottoms thereof, pass a suitable number of pipes opening into the sewer or drain, and into the said pipes, where or near where they lead from the drain, open air-injecting pipes having, if required, valves opening inward. In some cases air may be forced into the injecting-pipes; but to make my invention better understood I will proceed to describe the same by reference to the accompanying drawings, in which Figure 1 is a longitudinal section(partly in elevation) of a sewer, showing my improvements applied thereto. Fig. 2 is a transverse section of the same.

Similar letters in both the figures represent similar parts.

A A is an ordinary sewer. At suitable distances apart and over the same I place the receivers a.

b is the perforated false bottom in each receiver, and b is a division-plate for dividing the current of air.

c c are the charging-openings at the top of the receivers a.

(Z is theshaft leading from the top of the receiver, and provided with any, suitable cap or cowl, e, at the top, or with other means for producing an induced current.

f represents coke or other suitable porous materialplaced in 'the receiver a and saturated with carbolic acid, or with any suitable antiseptic or disinfecting material.

9 g are the pipes'passing from the receivers a into the sewer or drain A.

h h are the air-injecting pipes, the lower ends of which are provided with nozzles opening into the said pipes y, where or near where they lead from the sewer or drain, and either from the front or side of the said pipes g, as shown. The upper ends of the injecting-pipes extend near to the grating 2', covering the chamber j, in which the receivers a a are placed; or the said pipes may extend to any suitable height above the ground. In some cases only one connecting-pipe g and one injecting-pipe h will be required. is, air-shaft or opening midway between the receivers a, covered with a suitable grating, Z, for the entrance of air to replace that exhausted or' drawn from the sewer A, the current of air being divided by the plate The pipes It may be provided with Valves opening inward, and suitable provision is made for discharging any liquid which may accumulate in the receivers to and chambers j. p

By these improvements it will be understood that, air entering or being forced into the airinjecting pipes h, and an induced current being produced in the shaft (1 by the cowl or otherwise, the foul or other air or gases in the sewerAwill be drawn or forced from the sewer A, as shown by the arrows, through the pipes g, and into and through the saturated coke or other porous material in the receiver a, where by the said air or gases will be purified or disinfected, and will then be discharged through the shaft (1 into the atmosphere. The air or gases thus drawn or forced from the sewer A will be replaced by fresh air drawn in through 2 1 aslaer the air-shaft k, which will divide the current, so as to cause it to pass in opposite directions, as shown. that sewers and drains may not only be effi- 5 ciently ventilated, but that the air and gases therefrom are only discharged into the atmosphere after being purified or disinfected.

Having thus described the nature of my said invention and the best means with which I am acquainted for carrying the same into effect, I

would have it understood that what I claim is 1.. The combination, with a sewer or drain, and a receiver located above the same and provided with purifying material, of one or more connecting-pipes, g, andone or moreair-injecting pipes, h, having tapering nozzles or exits, and arranged to discharge into said pipes g, substantially as set forth. I

2. The combination, witha sewer or drain provided with an air-shaft, k, adapted to admit fresh air into said sewer or drain, of a reservoir, a, supplied with a disinfecting material, and having a perforated false bottom for supporting said material, one or more pipes, g,

2 5 connecting the sewer and receiver, one or more air-injecting pipes, h, discharging into said pipes g, and a shaft, (1, adapted to produce an induced upward current through said reservoir, snbstai'ltially as set forth.

By this means it will th-us'be'seen 8. The combination, with a sewer or drain and two receivers, a a, each provided with pipes d, g, and h, of an air-inlet shaft, k, located between said receivers, substantially as and for the purpose set forth.

4. The combination, with a sewer or drain and two receivers, a a, each provided. with pipes d, g, and h, of the air-inlet shaft k, located between said receivers and provided with the dividing-plate 7c, whereby-the air drawn in to replace that exhausted from the sewer may pass in opposite directions, substantially as set V THOMAS ROWAN.

Vitnesses A. ALBUTT, B. BRADY. 

